Mohammadali Nasseri - Department of Chemistry, Faculty of Sciences, Birjand University, Birjand, Iran.
Soheila Behravesh - Department of Chemistry, Faculty of Sciences, University of Birjand, Birjand, Iran
Ali Allahresani - Department of Chemistry, Faculty of Sciences, University of Birjand, Birjand, Iran
Milad Kazemnejadi - Department of Chemistry, Faculty of Sciences, University of Birjand, Birjand, Iran

In the recent decades, development of green and reliable processes for synthesis of metallic nanoparticles is inevitable because of their important applications in all fields of science, especially in nanotechnology and industry. Biological systems have received great attentions from scientist due to low cat, green nature and simple process for synthesis of metallic NPs. In this research, metal nanoparticles, Ag and Fe۳O۴ NPs, were synthesized through an ecofriendly and cost effective approach using aqueous extract of Cleome heratensis (C. heratensis). The influence of effective parameters including pH, interaction time, temperature, plant extract concentration and Ag concentration were thoroughly investigated base on surface plasmon resonance (SPR) for Ag NPs at max  ۴۷۰ nm. The bio-synthesized NPs were characterized by FTIR, UV-Vis, XRD, TEM and VSM analyses. The TEM images showed the size of silver and magnetite nanoparticles as ۱۲.۲۷ and ۱۴.۱۲ nm respectively with a homogeneous distribution and nearly spherical in shape.

C. heratensis, Capparaceae, Bio-synthesis, Silver nanoparticles, Magnetite nanoparticles